LM4954TL/NOPB by Texas Instruments | APACAudio Amplifier | Avnet ASIA
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信息

LM4954TL/NOPB

Texas Instruments

Audio Amp Speaker 1-CH Mono 1.2W Class-AB 9-Pin uSMD T/R

制造商料号#: LM4954TL/NOPB

替代型号#: LM4954TL/NOPB


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描述

文档

替代/替换

信息

The LM4954 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 2.4 Watts of continuous average power to an 8Ω BTL load with less than 1% THD+N from a 7VDC power supply.

Boomer audio power amplifiers are designed specifically to provide high quality output power with a minimal number of external components. The LM4954 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for lower-power portable applications where minimal space and power consumption are primary requirements.

The LM4954 features a low-power consumption global shutdown mode which is achieved by driving the shutdown pin with logic low. Additionally, the LM4954 features an internal thermal shutdown protection mechanism.

The LM4954 contains advanced pop & click circuitry which eliminates noises that would otherwise occur during turn-on and turn-off transitions.

The LM4954 is unity-gain stable and can be configured by external gain-setting resistors.

 

技术参数

  • No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required
  • Unity Gain Stable
  • Externally Configurable Gain
  • Ultra Low Current Active Low Shutdown Mode
  • BTL Output can Drive Capacitive Loads Up to 100pF
  • “Click and Pop” Suppression Circuitry
  • 2.7V - 9.0V Operation
  • Available in Space-Saving DSBGA Package
  • Wide Power Supply Voltage Range, 2.7 ≤ VDD ≤ 9V
  • Output Power: VDD = 7V, 1% THD+N, 2.4W (Typ)
  • Quiescent Power Supply Current, 3mA (Typ)
  • PSRR: VDD = 5V and 3V at 217Hz, 80dB (Typ)
  • Shutdown Power Supply Current, 0.01µA (Typ)
  • 技术特性

    描述
    寻找类似物料
    Maximum Single Supply Voltage
    9 V
    Operating Temperature
    -40 to 85 °C
    Typical PSRR
    80 dB
    Max Processing Temp
    260
    Maximum Load Resistance
    8 Ohm
    Output Signal Type
    Differential
    Pin Count
    9
    Supplier Package
    uSMD
    Minimum Single Supply Voltage
    2.7 V
    Typical Single Supply Voltage
    3|5 V
    Total Harmonic Distortion Noise
    0.1@8Ohm@600mW %
    Rail to Rail
    No
    Function
    Speaker
    Input Signal Type
    Single
    Power Supply Type
    Single
    Output Type
    1-Channel Mono
    Amplifier Type
    Class-AB
    Typical Output Power x Channels @ Load
    1.2x1@8Ohm W
    Lead Finish
    Tin/Silver/Copper
    Product Dimensions
    1.49 x 1.49 x 0.36 mm
    MSL Level
    1
    Mounting
    Surface Mount

    ECCN / UNSPSC

    描述
    ECCN:
    EAR99
    计划交货期 B:
    8542.39.00
    HTSN:
    8542.39.00
    UNSPSC:
    32101600
    UNSPSC VERSION:
    V15.1101
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